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Scientific Method
Scientific Method
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A review of the scientific method and experimentation.
Flashcards
25 cards
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Questions
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Answers
1
An experiment to see the effect of nail polish on the strength of nails. What is the DV?
Length of nails
Color of nail polish
Strength of nails
Type of nail polish
2
How many constants should an experiment have?
As many as possible
Ten
One
Two
3
What goes on the y-axis of the graph when communicating the results of an experiment?
dependent variable
independent variable
control variable
data
4
When scientists organize items into categories based on similar characteristics they are......
Classifying
Inquiring
Measuring
Predicting
5
What process skill are scientists using when they are using a standard unit to determine size?
comparing
organizing
predicting
measuring
6
How many independent variables should a reliable experiment have?
Two
As many as possible
Ten
One
7
An experiment to see how the amount of water affects size of avocados. What is the IV?
Number of avocados
Type of water
Size of avocados
Amount of water
8
"What is the effect of fertilizer on fish health?" What is the independent variable?
Fertilizer
Number of fish
Size of pond
If the fertilizer is increased then algae growth will go up.
9
An experiment is done to determine how the number of times goldfish are fed impacts body fat.
IV = amount of body fat
IV = type of fish (goldfish)
IV = Number of times fed
10
An experiment is done to determine how the number of times goldfish are fed impacts body fat.
Constant= Number of times fed
Constant= amount of body fat
Constant= type of fish (goldfish)
11
An "If, then" statement is how you write your.....
Problem
Hypothesis
Conclusion
Data
12
When conducting an experiment, which of the following would be a lab safety rule to follow?
Wear long jewelry and leave your hair down
Follow all directions
Plug in electrical cords near water
Leave your group and experiment unattended
13
"What is the effect of fertilizer on fish health?" What would be the dependent variable?
The fertilizer
Small ponds with increasing amounts of fertilizer
Health of the fish
Small pond with no fertilizer
14
Which of the following is an appropriate title for a graph?
The graph
Plant growth ranges from 1 to 9 cm
Temperature vs. The Plant Growth
The plant grew most in 70o F
15
Which of the following is necessary for a hypothesis to be valid?
It must be fun.
It must be correct.
It must be testable.
All statements make great hypotheses.
16
How would you test a hypothesis?
Perform an experiment
Organize the data
Make observations
Research
17
Which of the following is an observation?
I will be in trouble when I get home later.
I hear the crowd cheering.
The sky is dark so I think it might rain.
I believe we must have won the game.
18
What should a scientist do after they have collected and analyzed the data?
Define the problem
Make a hypothesis
Research
Draw a conclusion
19
Does practicing increase my batting average? What is a proper hypothesis for this question?
If I bat, then I will practice.
If I practice an amount, then I will have a batting average
If I practice more, then my batting average will increase.
If I increase my home runs, then I will practice more.
20
"What is the effect of fertilizer on fish health?" What would be the control group?
The fertilizer
Small ponds with increasing amounts of fertilizer
Small pond with no fertilizer
Identical ponds
21
An experiment is done to determine how the number of times goldfish are fed impacts body fat.
DV = amount of body fat
DV = Number of times fed
DV = type of fish (goldfish)
22
These are the parts in an experiment that can change.
conclusion
data
variable
control
23
Which statement is a proper conclusion?
Students received higher grades when they studied longer.
Students are smart.
It works.
Students studied for 1 hour, 2 hours, and 3 hours.
24
Where is the y-axis on a graph?
Bottom-horizontal
Middle
Left-vertical
Top
25
Which of the following is an inference?
Seeing red and orange leaves
Smelling campfires
Feeling the cold wind
Assuming it is fall
